A Problem

"DSP" <nospam at nospam.com> wrote in message
news:c_Xj8.289561$A44.15959244 at news2.calgary.shaw.ca...
> Hi all. I am sure many of you will know how to solve this problem. I
> personally have no idea how to do it.
>> Three genes X, Y, Z are linked on one chromosome. If crossing-over
between
> X and Y occurs 40% of the time, between Y and Z, 10%, and between Z and Z,
> 30%, waht is the sequence of these three genes on the chromosome?
>How many exam credits do we get for working it out, and which diploma do
they count towards?
Lesley Robertson